1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2015 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/types.h>
30
31 #include <stdlib.h>
32 #include <stdio.h>
33 #include <string.h>
34
35 #include "bhyvegc.h"
36
37 struct bhyvegc {
38 struct bhyvegc_image *gc_image;
39 int raw;
40 };
41
42 struct bhyvegc *
bhyvegc_init(int width,int height,void * fbaddr)43 bhyvegc_init(int width, int height, void *fbaddr)
44 {
45 struct bhyvegc *gc;
46 struct bhyvegc_image *gc_image;
47
48 gc = calloc(1, sizeof (struct bhyvegc));
49
50 gc_image = calloc(1, sizeof(struct bhyvegc_image));
51 gc_image->width = width;
52 gc_image->height = height;
53 if (fbaddr) {
54 gc_image->data = fbaddr;
55 gc->raw = 1;
56 } else {
57 gc_image->data = calloc(width * height, sizeof (uint32_t));
58 gc->raw = 0;
59 }
60
61 gc->gc_image = gc_image;
62
63 return (gc);
64 }
65
66 void
bhyvegc_set_fbaddr(struct bhyvegc * gc,void * fbaddr)67 bhyvegc_set_fbaddr(struct bhyvegc *gc, void *fbaddr)
68 {
69 gc->raw = 1;
70 if (gc->gc_image->data && gc->gc_image->data != fbaddr)
71 free(gc->gc_image->data);
72 gc->gc_image->data = fbaddr;
73 }
74
75 void
bhyvegc_resize(struct bhyvegc * gc,int width,int height)76 bhyvegc_resize(struct bhyvegc *gc, int width, int height)
77 {
78 struct bhyvegc_image *gc_image;
79
80 gc_image = gc->gc_image;
81
82 gc_image->width = width;
83 gc_image->height = height;
84 if (!gc->raw) {
85 gc_image->data = reallocarray(gc_image->data, width * height,
86 sizeof (uint32_t));
87 if (gc_image->data != NULL)
88 memset(gc_image->data, 0, width * height *
89 sizeof (uint32_t));
90 }
91 }
92
93 struct bhyvegc_image *
bhyvegc_get_image(struct bhyvegc * gc)94 bhyvegc_get_image(struct bhyvegc *gc)
95 {
96 if (gc == NULL)
97 return (NULL);
98
99 return (gc->gc_image);
100 }
101